title: Tuberculin dual testing in Panama.
abstract: A total of 137 adult Panamanians were skin-tested with 2 standard tuberculins (PPD-S and PPD-T) and 3 antigens prepared from atypical mycobacteria: PPD-B (Battey), PPD-Y (M. kansasii), and PPD-X (M. xenopi). PPD-T elicited fewer doubtful reactions than PPD-S. Both PPD-B and PPD-X, when used as antigens in dual testing, greatly reduced the number of doubtful reactions.
mesh_terms: D000328:Adult; D000942:Antigens, Bacterial / Q000276:immunology; D006801:Humans; D009165:Mycobacterium Infections, Nontuberculous / Q000175:diagnosis; D009169:Mycobacterium tuberculosis / Q000276:immunology; D009170:Nontuberculous Mycobacteria / Q000276:immunology; D010176:Panama; D014374:Tuberculin Test; D014376:Tuberculosis / Q000175:diagnosis*
chemical_list: D000942:Antigens, Bacterial